Work Energy And Power Question 266

Question: If a machine gun fires n bullets per second each with kinetic energy K, then the power of the machine gun is

Options:

A) nK2

B) Kn

C) n2K

D) nK

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Power=totalworkdonetime

=12Mv2t=12(mv2)nMt=mn

=kn[K.E.K=12mv2]



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